Laserfiche WebLink
QUARTERLY SEDIMENTATION POND INSPECTION REPORT <br />CDMR Rule 4.05.9(17) <br />Mine: New Elk RDA Containment SE <br />NPDES ID. No.: None <br />Inspection Period: Third Quarter 2009 <br />Inspection Date: 09122/09 <br />General Description or Reference to Site Plan: <br />This partially incised containment basin is a non-discharging facility designed to contain run-off <br />from the area east of the RDA belt conveyor and south of highway 12. <br />EMBANKMENT <br />1). Adequacy of the vegetative cover. <br />2). Erosion forming Gullies: <br />3). Is wave action causing erosion: <br />On the Upstream embankment? <br />Excellent ModeratK!e?) Poor <br />Extensive Some ew None <br />Yes No t,- <br />4). Erosion of the downstream toe of the embankment? Yes No ?- <br />Cause of erosion can be attributed to: <br />5). Is seepage occurring through the dam? Yes No e? <br />Could this seepage cause potential instability? <br />SEDIMENT STORAGE CAPACITY <br />1). Has the design storage capacity of the reservoir been surpassed? <br />Yes <br />Explain: <br />No y? <br />OTHER OBSERVATIONS: <br />pt, ? I f I L&Z: n ? ? <br />MSHA Qualified ImpoundmenfInspector <br />q-- <br />Date